Airports 451 to 500
Marathon (Wilson Memorial Hospital) Heliport
Carleton Place Airport
West Guilford/Redstone Lake Water Aerodrome
Bluearth Bow Lake Windfarm Heliport
Montreal River Harbour, Ontario, Canada — 793 km (428 nm) SW
Little Current (Manitoulin Health Centre) Heliport
Kars / Rideau Valley Air Park
Saint-Mathieu-de-Laprairie Aerodrome
St-Mathieu-de-Laprairie, Quebec, Canada — 799 km (431 nm) SSE